Loom-shuttle.



A. B. EDMANDS.

LOOM SHUTTLE.

APPLICATION FILED NOV. 13, 190B.

Patented June 29, 1909.

I I. l

To all whom it may concern:

\UFFICE.

. ARTEIMATS B. EDM'ANDS, o'Fi llLFORI), MASSACHUSETTS, ASS IQNOR TO WILLIAM F. DRAPER,

OF HOPEDALE, MASSACHUSETTS.

LOOM-SHUTTLE Specification of Letters Patent.

Patented June 29, 1909.

Application filed November 13, 1903. Serial No. 462,457.

Be it known that I, An'rEMAs B. En-

- accompanying d citizen of the United States, and resident 7 -.State of Massachusetts, have invented .an

rovement 1n Loom-Shuttles, of which the to owing descriptiomfin connection with the rawing, is a specification, like characters on the drawing representing like parts.

This invention relates to shuttles for use in looms of the type wherein a filling-carrier 0rbobbin is inserted automatically in the work ing shuttle while the loom is in motion, the;

incoming bobbin acting to eject or discharge from the shuttle the bobbin previously held therein, and my present invention has for its object the improvement of the bobbin-holdi-ng means, whereby the insertion of the-fresh bobbin and the ejection'of the old or spent bobbin is facilitated. To thisend I provide oppositelylocated holding jaws, within andat one end 0 the bobbin-receiving chamber of the shuttle, the jaws being so constructed and arranged that one of them may yield or move laterally at its upper part when a bobis inserted, the other jaw being arranged to yield laterally at its lower art but in the opposite direction when a ho bin is ejected from the. shuttle. By such construction and arrangement the butt of anincoming bobbin is more readil inserted into proper position between the aws,

less power, and the ejected bobbin is removed more easily and with less strain upon the parts. The inner, opposed faces of the jaws are provided with upright grooves to receive the usual annular projections or rings on the butt of the bob-bin, and I have carried 40 these grooves up to-the top of each jaw so that the ends ot the grooves-serve to guide the rings directly into the main parts of the said rooves when the bobbin is inserted in the s uttle.

The various novel features of my invention will be fully described in the subjoincd s ecification and particularly pointed outin tlie following claims;

Figure 1 is. a top plan view of the bobbinholding end of a shuttle, with one embodiment of my invention a plied thereto; Fig. 2 is a view similar to' *ig. 1, but with the bobbin-holding means removed; ig. 3 is a cross-section on the line 3-3, Fig. 1, looking towardthe left, with the downhold omitted; I

of Milford, county of Worcester,-

' an out-turned lip with the expenditure of Fig. 4 is a perspective view of the do'wnhold, detached Fig. 5 18 a perspective view of the two holding jaws, showing their reverse position; Fig. 6 is a perspective view of the jaw-supporting block; Fig. 7 is'a like view ofthe plate which locks the jaws upon the block; Fig. 8 is an end view of the two jaws, separated one from the other.

- The shuttle-body A has a bobbin-receiving. opening or chamber A', extended through the shuttle from top to bottom, and at one end the shuttle-wood is cut away to leave a transverse shelf a, and a longitudinal recess a is made in the wood, with an enlarged seat a Fig. 2, a suitable upright hole a being made-adjacent the end of the recess a, for a purpose to be described. Adjacent the shelf (1., which is at the bottom of the shuttle the walls of the chamber A are interiorly recessed, at a, see dotted lines Figs. 1 and f2, and'a narrow longitudinal seat a is made at the top of one recess, a corresponding seat (0 being made at the bottom of the opposite recess see Fig. 3.

I prefer to make the jaws of plate metal, and they are alike in construction but re: versed when placed in' the shuttle. Each jaw consists of an elongated body 1 having 2 along one edge, the body being transversely curved toward the other edge, as at'3, best shown in Figs. 3, 5 and S, the inner face of each jaw having a series of upright groovcsA adapted to. receive the usual annular projections or rings with which the butt of the bobbin is provided. The body of the jaw isextended at one end to 'form a narrower shank 5 and a bridge 6 projccts laterally from the-shank, the free end 7 of each bridge being turned substantially at right angles thereto, opposite the shank. A jaw-supporting block 8, shown separately in 'Fig. (3, is arranged to be embraced bythe bridges 6 and their ends 7, the jaws plied in reversed position, see Figs. 3, 5 and 8, so that the two ends 7 iit against the upright parallel sides of the block, while the bridges cross the top and bottom faces'of the block, respectively, bearing against a transverse abutinent 9. A heavy tongue 10 proj ecting from the abutment in a direction op- "posite to the block 8 is inserted in the recess a, Fig. '2, the lower edge of the abutment and the lower one of the bridges Gresting upon the shelf a, a transverse screw-bolt 11, see dotted lines Fig. l passing through the shutbeing aptle-body and through a hole (not shown) in the tongue 10, to hold the parts from longitudinal displacement in the shuttle. It will be observed that when the jaws are thus positioned in the shuttle thelip 20f one j aW-enters the groove a near the top ot'the shuttle," while the lip 2 of the opposite jaw enters the recess a, Fig. ,3, near the bottom of the shuttle, preventing lateral outward movement of the former jaw at its top and acting in like manner to prevent lateral outward movement of theother jaw at its bottom. But, viewing Fig. 3, the left-hand jaw can yield laterally to the left at its upper part, and the right-hand jaw can yield to the right at its lower art. Thus when a' bobbm is inserted 1n the shuttle the space between the upper longitudinal edges of the jaws is widened as the butt of the bobbin passes in be- .is inserted, while a similar movement occurs with the other jaw, upon the ejection of a bobbin, and the operations of inserting and ejecting are more easily performed, with less wear and tear upon the parts. After the jaws and the supporting block are assembled a locking plate 12 is ap )lied to the face of the block by a screw 13, t e plate having overturned, upright edges 14 beveled on their inner faces, to bear against the upright edges of the bent over parts 7 of-the bridges, the screw 13 entering a threaded hole 8*, Fig. 6.

I After the tongue 10 is seated in the recess ct of the shuttle and the lips 2 of they jaws are disposed in the grooves a 'and or the screw 13 is set up, which presses the edges 14 of the locking plate tightly against the bridge ends 7, securely and fixedly locking the shanksof the jaws upon the block 8. Finally a downhold, shown separately Fig. 4., is applied, said plate having a flat body 15 which covers the abutment 9 and the uppermost one of the bridges 6, a downturned tongue 16 which covers the locking plate 12 and its screw 13 and extends down to the shelf a, and a narrow extension 17 on the body 15, the extension fitting in the seat a and being held in place by a screw 18, Fig. 1, screwed tightly into the hole a in the shuttle-wood. A-neat finish is thus provided, the various parts of the j aw-support and locking means are covered and shielded, and nothing is left to catch upon the warp when the shuttle is in use.

that the grooves 4 in the jaws are carried up to theupper edges of the jaws, at 4 and somewhat flared, to facilitate the entrance of The abutment 9 has two upright grooves 9", Fig. 6, into which enter the outer edges of the two bridge ends 7, and the innefied es 7 of said ends are preferably slightly beveled to cooperate with the beveled edges 14 of. the locking plate 12 when the latter is set up or tightened, as described, to lock the bridges of the jaws on the j aw-supporting block. Having fully described my invention, what I claim as new and desire to secure by Letters Patent is: 1

1. A loom-shuttle adapted for the automatic insertion of a bobbm, havin gseparate jaws fixedly mounted thereon to engage and hold a bobbin between them, one of the jaws being free to yield laterally at its upper edge,

the opposite jaw abutting against the wall of the s uttle whereby said jaw is held from lateral yielding at its upper edge.

. 2. A loom-shuttle adapted for the automatic insertion of a bobbin, having opposed jaws.toyieldinglyengage and. hold a bobbin, one j aw abutting against one wall of the shuttle near the top, and the opposite jaw abutting against the other wall of the shuttle near the bottom, whereby the former jaw is held from lateral yielding near the top, and the latter jaw is held from lateral yielding near the bottom of the shuttle.

3. A loom-shuttle adapted for the automatic insertion of "a bobbin, having oppositely-curved, resilient jaws one of Which as an out-turned lip at its upper edge, and, a similar lip on the lower edge of the other jaw, to engage the side Walls of the shuttle and prevent outward yielding of said jawsat such points, whereby one jaw yields to an incoming bobbin and the other jaw yields when a bobbin is ejected.

4. A loom-shuttle adapted for the automatic insertion of a bobbin, having opposed.

holding-jaws each having a shank and lateral bridge terminating in bent-end, a supporting block-embraced. by the bridges and their bent ends, a locking member to retain said parts on the block, and means to secure the block rigidly in the shuttle.

5. In a loom-shuttleadapted for the automatic insertion of bobbin, resilient bobbin,- holding jaws one of which is laterally separable at its up er edge from the other jaw by entrance of a b obbin therebetween, such latter aw abutting at its upper edgeagainst the wall 0f the shuttle and being held thereby ing therebdy held-from lateral yielding, the fromlatera'l movement, while its lower edge yieldin e ge of one jaw being opposite the is laterally se garable from the first-named non-yie ding edge of the other jaw, and vice 15 jaw when a be bin is ejected; the lower ed 6 versa.

5 of such first-named jaw abutting against t e In testimony whereof, I have signed Iny adjacent wall of the shuttle and being held name to this specification,'in the presence of thereby lfrom litteral mgvemelnt. 1 two subscribing witnesses.

6. A ooIn-s lutt e a a te for t1e autoa matic insertion of a bobbin, one 1011 itudinal ARTENLAS 0 edge of each jaw bein free to yield aterally, Witnesses:

the other edge of each j aw abutting against OLIVER H. LANE, the adjacent side wall of the shuttle and be- JAMES E. WALKER. 

